1211311404232 has 16 divisors (see below), whose sum is σ = 2298572846640. Its totient is φ = 598358645136.

The previous prime is 1211311404229. The next prime is 1211311404239. The reversal of 1211311404232 is 2324041131121.

It is a junction number, because it is equal to n+sod(n) for n = 1211311404197 and 1211311404206.

It is not an unprimeable number, because it can be changed into a prime (1211311404239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912131418 + ... + 912132745.

It is an arithmetic number, because the mean of its divisors is an integer number (143660802915).

Almost surely, 2^{1211311404232} is an apocalyptic number.

It is an amenable number.

1211311404232 is a deficient number, since it is larger than the sum of its proper divisors (1087261442408).

1211311404232 is a wasteful number, since it uses less digits than its factorization.

1211311404232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824264252 (or 1824264248 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1211311404232 its reverse (2324041131121), we get a palindrome (3535352535353).

The spelling of 1211311404232 in words is "one trillion, two hundred eleven billion, three hundred eleven million, four hundred four thousand, two hundred thirty-two".